make possible to automatically add a sender whose message was marked as spam to the server blacklist and vice verse
When a user is marking a message as spam, a sender of this message is added to the server blacklist and is removed from the whitelist.
If a user is marking a message "not a spam" (moving from spam folder to the inbox), the sender of this message is removed from the server blacklist and then added to the server whitelist.
Thank you for your input. We will consider this functionality in upcoming releases if it is popular. Everyone, please continue voting for this feature if you consider it important.